personally if i feel guilty about my drinking or whatever else i did in the past, i tell myself that it's in the past now, there weren't any HORRIBLE outcomes, though some very bad ones, but its past now so it doesnt matter anymore.
if i feel really depressed i do something that i really like to do, which, for me, is play video games. it is relaxing and entertaining.
i'm always angry about random things but i think i've always been like that so i dunno what to say there :P
anxiety is really hard to deal with for me because the alcohol ruined the transmitters in my brain that allow you to return to a calm state. aside from the neurobiology, i get very anxious an shaky a lot and feel like im going to pass out. i usually try to tell myself that its all in my head and that everything is ok. if its really bad, i have to take medicine for it. i really dont deal with it all that well though because it is involuntarity caused in my brain. sads